[AccessD] Lamp-Based Solution

My system is being evaluated by a fellow in Singapore.  He writes among
other things:

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My systems personnel have tested the EZ-MRP, and have the notes attached for
your kind attention. They have bad experiences with ACCESS, and are very
negative about the use of ACCESS. The information available from the web
search also indicates that there are known problems of ACCESS especially if
it is linked to other software tools. 

It would be very difficult for us to market a software solution that is not
stable. We would have welcome the LAMP-based solution for portability across
Linux, Windows and other platforms, if possible, 
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So what is a LAMP-based solution?  What would you tell him about the
problems his staff see with Access?  Is this the same old ORACLE/SQL
parochialism we have seen before?

TIA

Rocky